Home / 60,780.30-90,870.72-51,523.62

Finding the Fourth Proportional to 60,780.30, 90,870.72 and 51,523.62

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Solution

The fourth proportional to 60,780.30, 90,870.72 and 51,523.62 is: 77,031.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,780.30 : 90,870.72 = 51,523.62 : x
  2. Step 2: Convert to fraction form
    60,780.30/90,870.72 = 51,523.62/x
  3. Step 3: Cross multiply
    60,780.30x = 90,870.72 × 51,523.62
  4. Step 4: Simplify right side
    60,780.30x = 4,681,988,446.41
  5. Step 5: Solve for x
    x = 4,681,988,446.41/60,780.30
  6. Step 6: Final answer
    x = 77,031.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.